Mark 15:4
So again Pilate asked him, aren't you going to answer? See how many things they are accusing you of — Pilate's amazement at the silence begins here and will be noted again in verse 5. The amazement is the response of a Roman official to a prisoner who does not mount a self-defense when self-defense could save his life. The silence is not resignation but the fulfillment of the Servant's silence (Isaiah 53:7).